Improved roofing



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MIIITH, .OF NYACK,

Liam Patent 'No'. 92,216, time July o, 1869.

The Schedule referre I IMI-novum RooP'ING.

to in these Letters Patent and making part of the same.

To all whom it may concern:

Beit known that LUORNELiUsT. SMITH, of Nyaok,.in the county of Rockland, in the State of New York, have invented certain new and useful Improvements in Rooting;-'and I do hereby declare that the following is a full and exact description thereof.

My invention Vrelates to the-l shapingl and applying together of the -boards or analogous piiees which torni the surface. l i i I will. trst describe what I conside'r the best means of carrying out my invention, and will afterward designate the pointswhich I believe to be nuev.

The accompanying drawings forni a part of this specilication. l.

Figure l is a top view;

Figure 2 is a section; and i Figure 3 is a cross-section.

Figure 4 is al cross-section, showing a slight modification in the form of the covering-pieces.

Figure 5 represents the manner in which the covering-pieces are sawed by a cylindrical saw, so as to econoinize material.

Similar letters of reference indicate like parts in all the iigures.

A A represent laths, orhorizontal pieces, which extend i'roin rafter to rafter.

B B are parallel strips, extending up and down the incline. l, x

O O ar'e boards, or analogous pieces, ijormed hollow on then-upper faces, as represented, so' |that the water falling on the root collects in the middle at' each board,- and runs down in a stream in such po itiou.

E E are strips of woud, cfa 'curved outline in crosssection, presenting a convex face upward, and a'concave face downward. g uw These pieces E E are considerably wif ,rl than the strips B, so that they lap upon the liollrq'weld boards O C, as represented.

Nails c are lriveu through the pieces The nails may be dii'ven vertically down through the centre of the stiips E, thus securing the strips E strongly to the strips B, without fastening directly to the liollowed boards C. i i

This will allow the boards a greater freedom iu coutracting and expanding with changes ofl the weather.

But I do not believe it generally necessary to leave the boards so far free, and as it is obviously necessary to holdy the boards rinly by some fastening, I prefer to put the nails in the positions indicated, driving them through the pieces E, .near their edgcs,aud also through the piecesG, near; their edges.

I canslrape my pieces by tting suitable cutters in a Woodworthplaning-machine, or by various analoa properly-adaptedsaw. 4

I have invented a peculiar construction of saw, which forms the subject of a separate application for patent,

.and which I' proposeto use for this purpose.

Any previouslyLknown arrangement of saws which will saw in a suitable curve, and continue the motion through the "extent oia long board, may be employed.

I believe it practicable to properly guide a belt-saw so as to saw this curved work.

It is very important, iu most regions, to economize the material, and it wlll be found that sawing in curves will produce a very close approxiinationwto they'.` best possible form for the covering-pieces E', without i z' wasting.

Fig.l5 shows the way several of mycoveringrpieces are gotont by the saw, the hollow side of one and the swelled side of the other matching together. rangement gives the greatest thickness along the middle, exactly as is required iu practice;

froiureaching the central fastening-pieces l ain aware that soine of the elements of myroofing'have lbeen before known in the saine form, and that vholl'owed cap-piecesA have been before employed,

both in wood and metal, to coverjoints in roofs. Such l .do not claim alone; but

' I claim as my invention, and desire to secure by Letters Patent- The within-described arrangement of the intermediate fastening-pieces B, the hollow-based covering-l Witnesses W. (LDEY, O. 0,-L1v1NGs.

New YORK. i

nrons means which will excarate liollows and shape 2 the rounded surfacesg' butlI'prefer to vsaw them with The greatswell of the upper face sheds the water freely, while. the hollow 'of the under face deiiects the edges down ff y into the hollow ofthe boards C, and prevents the water l i 

